This PDF presents Module 2: Project Proposal Development in Horizon Europe, a comprehensive training resource that guides participants through the full lifecycle of preparing a competitive Horizon Europe project proposal. It covers EU policy priorities, finding and interpreting calls, building consortia, structuring proposals (Excellence, Impact, Implementation), developing pathways to impact and Key Exploitable Results (KERs), budgeting, and submission via the EU Funding & Tenders Portal. The material is designed for researchers, project managers, and organisations seeking to strengthen their capacity to design high-quality, impact-oriented EU project proposals.